GSM / 3G Access Controller
GSM / 3G Door Opener
GSM Access Control
It is rugged and assembled with an aluminum case. The product is small and easy to install. It uses the GSM network.
3G GSM Access Control
SS1206B-03 product is GSM 3G Access Control. It mainly uses 3G network.It can control two door locks
GSM remote controllers-3G full frequency
CallFree devices are 3G GSM remote controllers(1704) that are activated by calling or texting its mobile phone number. This will switch any device, it is connected to, on or off. There is no call costs incurred as the GSM controller will reject the call without answering.
3G Digital GSM Access Control
It mainly uses the 3G network. The main function can use keypad to enter the password to open the door. Different password can open different door locks, can control a total of two locks.